131 
SECTION No. 1—Continued 
Totals in 
Teicteot (ft. and ins.| rota 
Description of Measures between be 
and aack depths 
inches | division 
TT ee ad ee eee 
ft. ft in. | ft. i. 
Gray, white, and blue compact limestone... 330 480 0| 673 10 
Shale and limestone alternating “6 .-.| 107 
Gray argillaceous limestone... 5: es 
Gray shale... ite eee of os pec ieea!) 
Shale, limestone ... a Ac Wes veel ed 
Shale aa ee dos, ses ite sali 
Limestone .. ae i 
Gray shale, ‘With thin beds of limestone 
_ Argillaceous limestone ... 
- Shale, with thin beds of limestone 
_ Argillaceous limestone 
Shale and limestone alternating 
Limestone .. : 
Shale 
_ Limestone... 
Soft black shale 
Limestone .. 
‘Limestone and shale 
Shale 
Limestone ... 
_ Shale 
Limestone ... 
Black shale 
Limestone .. 
Black shale 
Brown ae “With shale partings ... 
- 
‘Sandy marl 
Limestone .. 
SOOCAUDDOSCOCHAPARORAORBDOABKRDOHANSDOOOSOHARS©S os 
= 
DE ROR HONWHERONONOOCONHOOCOPNHHEHS 
164 9} 838 7 
On page 121 of the Geological Memoire it is stated that— 
« From this section we learn that a total thickness of 2,338 feet 
“obtained on the Avon has diminished down to 791 feet; and 
“the lower shales, about 500 feet thick, near Bristol, are about 
“165 feet deep at Dean Forest ; and that the upper mixtures of 
“sandstones, marls, and limestones of the Avon, 400 feet thick, 
“are represented at Purlien by sandstones, limestones, and 
